Is your pass still available for purchase? I would suggest you to ask for a refund at Google Play, wait until it's accepted, and then, try to purchase it again.
I had exactly the same problem. My first purchase didn't go through.
Here you can read how to ask for a refund from Google Play: https://support.google.com/googleplay/answer/7205930?co=GENIE.Platform%3DAndroid&oco=1